Top answers

What is the difference between speed and velocity?

Speed is a scalar quantity i.e it is a quantitative measure and has no direction. Whereas velocity is the speed of an object in a given direction.
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Answered by Saanya A. • Science tutor
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Outline the breakdown of relationships.

Duck's Phase Model claims that breakdown happens in four stages. The first stage is Intrapsychic whereby an individual realises there is a problem within the relationship. The second is Dyadic whereby the in...
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Answered by Zaynah A. • Psychology tutor
5304 Views

Why are monopolies dynamically efficient?

Monopolies generate economic profit and are therefore better able to invest in research & development which may improve their productive effiency, making them more dynamically efficient over time.
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Answered by Zaynah A. • Economics tutor
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What is 'survival of the fittest?'

1. What is ‘survival of the fittest’? - ‘Survival of the fittest’ is a phrase way to describe the principle behind the theory of evolution by natural selection, originally proposed by Charles Darwin in 1859 ...
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Answered by Radoslaw K. • Biology tutor
21039 Views

How do fossil fuel powered power stations and solar powered power stations generates electricity?

In fossil fuels powered power stations fossil fuels (such as coal) are burnt to generate heat. This heats is used to heat a large amount of water and turn it into steam. The movement of the steam causes turb...
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Answered by Sivarjuen R. • Physics tutor
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